钢铁钒钛

Report on China titanium industry in 2021

An Zhongsheng, Chen Yan, Zhao Wei

2022, 43(4): 1-9. doi: 10.7513/j.issn.1004-7638.2022.04.001

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Abstract:
The overall situation of China titanium industry was analyzed on the basis of production capacity, application and import and export amount of titanium concentrate, titanium sponge, titanium ingot and titanium materials in 2021. The existed problems and the corresponding suggestions were also propos...

Effect of V doping on electrochemical properties of LiNi_1/3Co_1/3Mn_1/3O₂ as cathode material for lithium-ion battery

Zheng Hao, Wang Shiwei, Meng Weiwei

2022, 43(4): 10-15. doi: 10.7513/j.issn.1004-7638.2022.04.002

Abstract(303) HTML (122) PDF(9)

Abstract:
LiNi_1/3Co_1/3Mn_1/3O₂ (LNCM) cathode material with high specific capacity has received extensive attention in power batteries. However, the serious safety issues and poor cycle performance limit its application prospect. Doping is one of the effective methods to boost the electrochemical performance o...

Study of high-calcium vanadium slag with blank roasting carbonation leaching process

Wang Jun, Liu Shuang, Yan Beilei, Li Yulong, Zhu Xuejun, Deng Jun, Zeng Chenghua, Yang Tao, Chen Dandan, Zhang Yi

2022, 43(4): 16-23. doi: 10.7513/j.issn.1004-7638.2022.04.003

Abstract(353) HTML (62) PDF(55)

Abstract:
In view of the high-calcium content of high calcium and high-phosphorus vanadium slag and the existing vanadium extraction process difficult to effectively extract vanadium, blank roasting-carbonation leaching process is investigated, and the response surface method is used for optimization. The eff...

Flotation mechanism of ilmenite with benzohydroxamic acid

Yang Zhaojun, Wang Fengyu, Zhong Senlin, Liang Taomao

2022, 43(4): 24-27. doi: 10.7513/j.issn.1004-7638.2022.04.004

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Abstract:
Flotation is an effective means to recover ilmenite, in which collector plays a key role. At present, the research on ilmenite flotation collectors mainly focuses on the collectors including oleic acid and hydroxamic acid. Among them, benzohydroxamic acid based collectors have attracted much attenti...

Research progress and perspectives of hydrochloric acid hydrolysis technology for titanium dioxide production

Yu Yaojie, Song Yue, Dong Shishun, Ren Xiulian, Wei Qifeng

2022, 43(4): 28-35. doi: 10.7513/j.issn.1004-7638.2022.04.005

Abstract(656) HTML (105) PDF(65)

Abstract:
Hydrochloric acid method is a new type of titanium dioxide production process following sulfuric acid method and chlorination method, which has the characteristics of less waste output, low requirements for raw materials, and can produce rutile and anatase. Hydrolysis is one of the important process...

Trend and control of P in FeV50 smelting process of large-scale tilting furnace

Ye Mingfeng, Yu Bin, Huang Yun, Jing Han

2022, 43(4): 36-41. doi: 10.7513/j.issn.1004-7638.2022.04.006

Abstract(255) HTML (65) PDF(18)

Abstract:
Combined with theoretical analysis, element balance statistics and industrial tests, the trend, distribution and control measures of P in FeV50 smelting process of large-scale tipping furnace were studied. The results show that P₂O₅ brought in by raw materials during FeV50 smelting in large-scale ti...

Influence of dynamic compression properties on ballistic performance of α+β two-phase titanium alloy

Yang Liu, Wang Ying, Wu Jingyi, Liu Xin

2022, 43(4): 42-47. doi: 10.7513/j.issn.1004-7638.2022.04.007

Abstract(466) HTML (94) PDF(35)

Abstract:
In order to study the effect of dynamic compression properties on ballistic resistance of titanium alloy materials, three different strength grades of α+β two-phase titanium alloys, TC4, TC6 and TC11, are selected for the dynamic compression test, quasi-static tensile test and 5.8 mm caliber bullet ...

Microstructure and electrochemical properties of ball-milled AB₅+x%VFe alloys

Li Lirong

2022, 43(4): 48-54. doi: 10.7513/j.issn.1004-7638.2022.04.008

Abstract(292) HTML (98) PDF(29)

Abstract:
The MlNi_3.55Co_0.75Mn_0.4Al_0.3+x%VFe(x=5, 10, 15, 20) composite hydrogen storage alloys were synthesized by mechanical ball-milling. The microstructure and electrochemical properties of the composites were investigated. The microstructure analysis indicates that the parameters a and V of the main phas...

Effect of sintering temperature on microstructure and properties of porous Ti-15Al alloy

Zhang Meili, Dai Weili, Liu Yanfeng, Han Xi

2022, 43(4): 55-61. doi: 10.7513/j.issn.1004-7638.2022.04.009

Abstract(375) HTML (68) PDF(30)

Abstract:
The porous Ti-15Al alloy materials were prepared by powder metallurgy with Ti and Al powder as raw materials. The effects of different sintering temperatures on the phase composition, micropore structure, compressive and corrosion resistance were studied. The results show that the equilibrium phase ...

Effect of hydrothermal reaction time on electrochemical properties of (NH₄)₂V₄O₉ as cathode material for aqueous zinc ion batteries

Lu Chao, Yang Zhi, Wang Yujie, Ding Yi, Li Tao, Wang Heng, Tang Bowen

2022, 43(4): 62-68. doi: 10.7513/j.issn.1004-7638.2022.04.010

Abstract(448) HTML (98) PDF(42)

Abstract:
(NH₄)₂V₄O₉ as cathode material for aqueous zinc ion batteries was prepared by a facile one-step hydrothermal method using NH₄VO₃ and C₂H₂O₄·2H₂O as raw materials. X-ray diffractometer (XRD), scanning electron microscope (SEM), galvanostatic charge-discharge (GCD), galvanostatic intermittent titratio...

Preparation of graphene-reinforced titanium matrix composites by vacuum hot pressing

Tian Tingting, Li Runjian, Zhang Zaiyu

2022, 43(4): 69-74, 93. doi: 10.7513/j.issn.1004-7638.2022.04.011

Abstract(247) HTML (91) PDF(24)

Abstract:
In this paper, titanium matrix-graphene composites were successfully in-situ synthesized using glucose as carbon source. Graphene-reinforced pure titanium matrix composites were prepared in situ by vacuum hot-pressing sintering method using glucose solution and pure titanium powder as raw materials....

Effect of volumetric energy density on surface roughness and density of selective laser melted titanium alloy

Yi Tao, Cheng Jing, Zhao Zhongzhe, Rong Peng

2022, 43(4): 75-79. doi: 10.7513/j.issn.1004-7638.2022.04.012

Abstract(501) HTML (82) PDF(95)

Abstract:
In this paper, the laser power and scanning distance of selective laser melting were studied respectively, and the influence of process parameter on density and surface roughness of titanium alloy was comprehensively analyzed by introducing volumetric laser energy density. The experimental results s...

Preparation of dicalcium ferrite and its catalytic properties for methane

Shi Yan, Song Changhe, Liu Jianshuang, Hao Ke, Pan Miaomiao

2022, 43(4): 80-86. doi: 10.7513/j.issn.1004-7638.2022.04.013

Abstract(282) HTML (67) PDF(33)

Abstract:
Using Iron(Ⅲ) nitrate nonahydrate and calcium nitrate tetrahydrate as raw materials, deionized water as solvent, citric acid as complexing agent, ammonia water to adjust pH value of solution, blank cordierite honeycomb as support, dicalcium ferrite cordierite honeycomb support type catalyst was prep...

Feasibility analysis of high-titanium heavy slag as aggregate for asphalt mixture

Wang Wei, Wang Jie, Liang Yuehua

2022, 43(4): 87-93. doi: 10.7513/j.issn.1004-7638.2022.04.014

Abstract(242) HTML (98) PDF(28)

Abstract:
Taking the high-titanium heavy slag in Panxi area as the research object, the feasibility of using it as aggregate for asphalt mixture was analyzed through theoretical and experimental research, also it was compared with the natural stone such as basalt commonly used in asphalt mixture at present. T...

Phase simulation and experiment of anorthite-diopside glass-ceramics based on stainless steel slag containing chromium

Guo Yuliang, Jin Huixin, Xiao Yuandan, Lei Ershuai, Wang Zhengxing

2022, 43(4): 94-99. doi: 10.7513/j.issn.1004-7638.2022.04.015

Abstract(224) HTML (44) PDF(26)

Abstract:
Chromium-containing stainless steel slag will lead to the leaching of chromium and environment problems. Glass-ceramics possess excellent chromium fixation and physical properties. In order to explore the occurrence law of chromium in anorthite-diopside system, the phase equilibrium of anorthite-dio...

Experimental study on durability of high-titanium heavy slag concrete under salt freezing

Liang Hezhi, Chen Wei, Yang He

2022, 43(4): 100-106. doi: 10.7513/j.issn.1004-7638.2022.04.016

Abstract(199) HTML (44) PDF(25)

Abstract:
Considering the three factors of water-binder ratio, fly ash content, and composite salt solution concentration, orthogonal experiments are used to study the influence of different factors on the durability of high-titanium heavy slag concrete. The experimental results show that the concentration of...

Research and application of improving the compressive strength of full V-Ti pellets

Hu Peng, Jiang Sheng, Tan Yangjie, Zhou Mi, Xiang Shaohong

2022, 43(4): 107-113. doi: 10.7513/j.issn.1004-7638.2022.04.017

Abstract(399) HTML (54) PDF(43)

Abstract:
The low compressive strength (average 1 600 N/P) and large strength fluctuation (926 N/P min, 2287 N/P max) of V-Ti pellets greatly affect the stability and smooth operation of blast furnace after being smelted in blast furnace. The technical research and application of improving the compressive str...

Experimental study on treatment of the tailings containing manganese using composite agglomeration process

Teng Fei, Zeng Zhiyan, Guo Peimin, Yue Chongfeng

2022, 43(4): 114-120. doi: 10.7513/j.issn.1004-7638.2022.04.018

Abstract(287) HTML (108) PDF(27)

Abstract:
In order to address the issue of poor material permeability and low yield and quality of sinter when a kind of tailings containing manganese was used in the 100% concentrate sintering process, the rational utilization of tailings containing manganese was investigated by the composite agglomeration p...

Development of activity calculation model for the CaO-Al₂O₃-MgO-SiO₂-Ce₂O₃ slag system

Yu Cheng, Qiu Jiyu, Liu Chengjun

2022, 43(4): 121-126. doi: 10.7513/j.issn.1004-7638.2022.04.019

Abstract(524) HTML (136) PDF(36)

Abstract:
During smelting steel containing rare earth elements, there exists strong reaction between the molten steel and the slag, which may result in significant content fluctuation of dissolved rare earth and then reduce its effect in steel. However, the lack of thermodynamic data of rare earth-containing ...

Numerical simulation on pouring process of nickel base superalloy induction ingot

Tang Pingmei, Zhou Yang, Jiang Dongbin

2022, 43(4): 127-133, 141. doi: 10.7513/j.issn.1004-7638.2022.04.020

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Abstract:
In this paper, the numerical simulation on pouring process of nickel base superalloy induction ingot had been carried out by using ProCAST software. The change characteristics of temperature field and solid fraction during the filling and solidification process of ingot and their influence on ingot ...

Composition design of CaO-Al₂O₃series low reactivity continuous casting molding flux for high titanium steel

Wang Xingjuan, Wang Yu, Zhu Liguang, Di Tiancheng, Jin Hebin, Piao Zhanlong

2022, 43(4): 134-141. doi: 10.7513/j.issn.1004-7638.2022.04.021

Abstract(217) HTML (128) PDF(34)

Abstract:
In the continuous casting process of high-titanium steel, the traditional CaO-SiO₂-Al₂O₃ mold slag will produce a violent steel/slag interface reaction, which will affect the continuous casting process stability. In order to weaken the interface reaction of steel/slag, a low reactivity mold flux for...

Precipitation kinetics of composite carbides of Nb-Ti-V-Mo microalloyed steel

Yao Na, Xing Chao

2022, 43(4): 142-149. doi: 10.7513/j.issn.1004-7638.2022.04.022

Abstract(420) HTML (84) PDF(55)

Abstract:
The precipitation thermodynamics of the multi-element composite precipitates in the Nb-Ti-V-Mo microalloy E460 off shore steel was calculated by JmatPro thermodynamics software, in combination with the classical nucleation and growth kinetic theory, were used to study precipitation law of (Nb,Ti,Mo,...

Influence of cooling process on heat transfer of thin slab mold

Liu Zengxun, Zhang Luping, Xiao Pengcheng, Zhang Zhaoyang, Zhu Liguang

2022, 43(4): 150-157. doi: 10.7513/j.issn.1004-7638.2022.04.023

Abstract(285) HTML (89) PDF(29)

Abstract:
To reveal heat transfer mechanism of the slab-copper wall-cooling water system in the high-speed continuous casting mold, a three-dimensional fluid-solid-thermal coupling numerical model of slab-copper wall-cooling water in a FTSC mold was established. The influence of mold cooling process on temper...

Research on Johnson-Cook constitutive model of 06Cr19Ni10 austenitic stainless steel at high strain rate

Zhang Jilin, Luo Wencui, Jia Haishen, Yi Xiangbin, Xu Chuangwen, Tang Linhu, Qin Juanjuan

2022, 43(4): 158-166. doi: 10.7513/j.issn.1004-7638.2022.04.024

Abstract(242) HTML (463) PDF(47)

Abstract:
In order to explore the flow behavior of 06Cr19Ni10 austenitic stainless steel under large strain and high strain rate forming, impact tests had been carried out under different temperature and strain rate with the help of high temperature split hopkinson pressure bar dynamic experimental device. Im...

Effect of final cooling temperature on the microstructure and DWTT of thick X80 linepipe steel strip

Ye Xiaoyu, Ren Shoubin, Li Ba, Jia Shujun, Zhang Kaihua, Huang Zhenyi

2022, 43(4): 167-172. doi: 10.7513/j.issn.1004-7638.2022.04.025

Abstract(198) HTML (49) PDF(30)

Abstract:
The effects of different final cooling temperatures on the microstructure and drop weight properties of 21.4 mm thick X80 linepipe steel strip were studied, and the effect of different microstructure on crack propagation path was discussed. When the final cooling temperature is 480 ℃, the microstruc...

Effect of hot working process on the grain size of 316LN austenitic stainless steels

Xu Haijian, Qiao Xin, Guo Cheng, Liu Liu, Yang Yuze, Sha Xiaochun

2022, 43(4): 173-177. doi: 10.7513/j.issn.1004-7638.2022.04.026

Abstract(531) HTML (60) PDF(42)

Abstract:
The grain morphologies in 316LN austenitic stainless steel were observed by Zaiss Imager metallographic microscope. The effects of deformation temperatures, deformation rates and solution temperatures on the grain size of 316LN steel were systematically studied. The experimental results show that th...

Study on hydrogen embrittlement resistance of Ti-microalloying hot forming steel for automobile

Liu Hanhua

2022, 43(4): 178-183. doi: 10.7513/j.issn.1004-7638.2022.04.027

Abstract(203) HTML (35) PDF(17)

Abstract:
The hydrogen embrittlement resistance of two kinds of Nb-Mo hot forming steels with different Ti contents for automobile was studied by slow strain rate tensile test along with hydrogen charging and hydrogen desorption test in this paper. The results show that with increasing titanium content from 0...

Analysis on typical rail damage of high speed railway

Yang Dawei, Deng Yong, Dong Xuejiao, Zhao Jizhong

2022, 43(4): 184-190. doi: 10.7513/j.issn.1004-7638.2022.04.028

Abstract(434) HTML (71) PDF(30)

Abstract:
Rail damage restricts the stable contact between wheel and rail and affects the driving safety. Regarding the damage of a railway rail in on-line service, the multi-directional inspections had been carried out by using Axio observer 5m metallographic microscope, Empyrean X-ray diffractometer, sigma ...

Research on the transformation of scientific and technological achievements into technical standards-Taking the comprehensive utilization of vanadium titanium magnetite as an example

Zheng Ying, Han Bing, Liu Liwei, Cheng Yong

2022, 43(4): 191-196. doi: 10.7513/j.issn.1004-7638.2022.04.029

Abstract(355) HTML (112) PDF(36)

Abstract:
The transformation of scientific and technological achievements into technical standards can effectively advance the scientific and technological innovation and standardization, and promote the industrial application of scientific and technological achievements, which is of great significance to Chi...

2022 Vol. 43, No. 4